The listings specify the wands are made of iron, noted specifically as wrought iron in the product details.
The wand attaches to the first curtain ring via an integrated loop. A gentle pull on the wand lets you glide the curtains open or closed, and the wand can hang along the curtain edge when not in use.
The listings describe the wands as durable and sturdy, specifically noting wrought iron construction and using phrasing such as “sturdy and long-lasting.”